CN102228985B - Baking device and method for integral water gap of continuous casting tundish - Google Patents
Baking device and method for integral water gap of continuous casting tundish Download PDFInfo
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- CN102228985B CN102228985B CN201110175137.7A CN201110175137A CN102228985B CN 102228985 B CN102228985 B CN 102228985B CN 201110175137 A CN201110175137 A CN 201110175137A CN 102228985 B CN102228985 B CN 102228985B
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- tundish
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- baking device
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Abstract
The invention discloses a baking device and method for an integral water gap of a continuous casting tundish. The baking device comprises a cylindrical baking barrel, wherein the inner wall and the bottom of the baking barrel are respectively provided with a refractory material layer, two symmetrical supports are welded on the outer wall of the baking barrel, an air duct is arranged on the barrel wall of the baking barrel, one end of the air duct is welded on the outer wall of the baking barrel, an exhaust pipe joint and a blowing pipe joint are welded at the other end of the air duct, and a cover plate is further welded at the opening end of the baking barrel. The baking method comprises the steps of: during baking, inserting the integral water gap into the baking device, tightly binding up the outer wall of the integral water gap and a combination part at the upper port of the baking device with asbestos cloth, then igniting to bake the tundish for 1.5-2 hours, opening a compressed air valve when the temperature inside the tundish reaches 700-800 DEG C, blowing compressed air into the blowing pipe joint, introducing smoke in the tundish to be exhausted from the exhaust pipe joint, and baking the integral water gap of the tundish.
Description
Technical field
The present invention relates to device and baking method that metallurgy industry toasts continuous casting intermediate inlet, particularly a kind of device that integral water gap of continuous casting tundish is toasted and baking method.
Background technology
Current arc continuous casting middle water containing opening has the split type mouth of a river and integral water gap two kinds of forms, and the split type mouth of a river is made up of middle water containing opening and crystallizer submersed nozzle two parts, and integral water gap is integrated at middle water containing opening and submersed nozzle.Mainly contain drawing-in type and suction type two kinds to the apparatus for baking of middle water containing opening, drawing-in type apparatus for baking needs the auxiliary devices such as air-introduced machine, constructs more complicated, and takies the limited working space in continuous casting production region; Suction type apparatus for baking requires itself and middle water containing opening junction good seal, and needs the compressed air of elevated pressures.Two kinds of roasting modes, all because suction force is comparatively large, exists and the cast produced when toasting in tundish are sucked the problem blocking the mouth of a river in the mouth of a river.For the split type mouth of a river, if blocked when toasting, can crystallizer submersed nozzle be changed, ensureing that continuous casting is produced and carrying out smoothly.And integral water gap blockedly just can not to be changed when toasting, continuous casting production will be affected.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and a kind of device of toasting integral water gap of continuous casting tundish and baking method are provided.
Technical scheme of the present invention is: a kind of baking device for integrated water gap of continuous casting tundish, it comprises the cylindrical baking bucket of a bottom lock, upper end open, be provided with refractory masses at the baking inwall of bucket and bottom, the outer wall of baking bucket is welded with two symmetrical bearings.The barrel of baking bucket is provided with a breather line, one end of breather line is welded on the outer wall of baking bucket, and communicate with the inner chamber of baking bucket, the other end of breather line is welded with an exhaust fitting, exhaust fitting and breather line angle are 150 degree, the diameter of exhaust fitting is less than the diameter of breather line, and its binding site adopts arc-shaped transition.Breather line is also welded with a gas blow pipe joint, and the diameter of gas blow pipe joint is less than the diameter of exhaust fitting, and is on same axis with exhaust fitting, and gas blow pipe joint is connected with compressed air piping by rubber tube.Also be welded with one piece of cover plate in the openend of baking bucket, the internal diameter of cover plate is slightly less than the internal diameter of wall circular refractory masses in baking bucket.
Present invention also offers a kind of baking method of integral water gap of continuous casting tundish, its concrete operation step is as follows:
Before A, continuous casting are produced, the positional distance of adjustment tundish and gripper shoe, then in slag basin, baking device for integrated water gap is carried away, baking device for integrated water gap is placed on the supporting plate, make the pouring box integral formula mouth of a river and baking device for integrated water gap centering, reduce tundish position again, make the pouring box integral formula mouth of a river insert in baking device for integrated water gap, by tight with asbestos cloth wrapping for the joint portion of integral water gap outer wall and baking device for integrated water gap upper port.
B, tundish burner are lighted a fire, tundish is toasted, toast after 1.5 ~ 2 hours, in tundish, temperature reaches 700 ~ 800 DEG C, then compressed air valve is opened, compressed air is blown into from gas blow pipe joint, guides the flue gas in tundish to discharge from exhaust fitting, toasts tundish integral water gap.
C, be blown into compressed air baking 2 ~ 3 hours, in tundish, temperature reaches more than 1100 DEG C, integral water gap outer wall and baking device for integrated water gap upper port joint portion wrapping asbestos cloth temperature reach 600 ~ 700 DEG C, can continuous casting production be carried out.
When toasting tundish integral water gap, the gaseous-pressure of tundish burner is 0.5 ~ 0.7Mpa, and compressed air pressure is 0.2 ~ 0.4MPa.
The present invention has following features compared with baking device for intermediate ladle outlet of the prior art and baking method:
1, baking device for integrated water gap of continuous casting tundish structure provided by the invention is simple, convenient and reliable operation.
2, compressed air pressure and traffic requirement lower, and can to adjust at any time according to the mouth of a river situation of toasting, to ensure the cured effect at the mouth of a river.
3, gripper shoe rests on the slag basin of baking of tundish position, the bearing on baking bucket outer wall is supported by gripper shoe when pouring box integral formula mouth of a river apparatus for baking does not work, the bottom of baking bucket is placed in slag basin, make the height of whole pouring box integral formula mouth of a river apparatus for baking lower than casting platform, do not affect the normal operation of other equipment.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is pouring box integral formula mouth of a river baking schematic diagram;
Accompanying drawing 2 is pouring box integral formula mouth of a river apparatus for baking structural representation.
Detailed description of the invention
A kind of baking device for integrated water gap of continuous casting tundish, it comprises the cylindrical baking bucket 1-1 of a bottom lock, upper end open, be provided with refractory masses 1-6 at the inwall of baking bucket 1-1 and bottom, the outer wall of baking bucket 1-1 is welded with two symmetrical bearing 1-7.The barrel of baking bucket 1-1 is provided with a breather line 1-3, one end of breather line 1-3 is welded on the outer wall of baking bucket 1-1, and communicate with the inner chamber of baking bucket 1-1, the other end of breather line 1-3 is welded with an exhaust fitting 1-4, exhaust fitting 1-4 and breather line 1-3 angle are 150 degree, the diameter of exhaust fitting 1-4 is less than the diameter of breather line 1-3, and its binding site adopts arc-shaped transition.Breather line 1-3 is also welded with a gas blow pipe joint 1-5, and the diameter of gas blow pipe joint 1-5 is less than the diameter of exhaust fitting 1-4, and is on same axis with exhaust fitting 1-4, and gas blow pipe joint 1-5 is connected with compressed air piping by rubber tube.Also be welded with one piece of cover plate 1-2 in the openend of baking bucket 1-1, the internal diameter of cover plate 1-2 is slightly less than the internal diameter of wall circular refractory masses 1-6 in baking bucket 1-1.
The present embodiment additionally provides a kind of baking method of integral water gap of continuous casting tundish, and its concrete operation step is as follows:
Before A, continuous casting are produced, the positional distance of adjustment tundish 5 and gripper shoe 2, then in slag basin 3, baking device for integrated water gap 1 is carried away, baking device for integrated water gap 1 is placed in gripper shoe 2, make the pouring box integral formula mouth of a river 6 and baking device for integrated water gap 1 centering, reduce tundish 5 position again, make the pouring box integral formula mouth of a river 6 insert in baking device for integrated water gap 1, by tight with asbestos cloth wrapping for the joint portion of integral water gap 6 outer wall and baking device for integrated water gap 1 upper port.
B, tundish burner 4 are lighted a fire, tundish is toasted, toast after 1.5 ~ 2 hours, in tundish, temperature reaches 700 ~ 800 DEG C, then compressed air valve is opened, compressed air is blown into from gas blow pipe joint 1-5, guides the flue gas in tundish 5 to discharge from exhaust fitting 1-4, toasts tundish integral water gap 6.
C, be blown into compressed air baking 2 ~ 3 hours, in tundish, temperature reaches more than 1100 DEG C, integral water gap 6 outer wall and baking device for integrated water gap 1 upper port joint portion wrapping asbestos cloth temperature reach 600 ~ 700 DEG C, can continuous casting production be carried out.
When toasting tundish integral water gap 6, the gaseous-pressure of tundish burner 4 is 0.5 ~ 0.7Mpa, and compressed air pressure is 0.2 ~ 0.4MPa.
Claims (2)
1. a baking method for integral water gap of continuous casting tundish, is characterized in that: its concrete operation step is as follows:
Before A, continuous casting are produced, the positional distance of adjustment tundish and gripper shoe, then in slag basin, baking device for integrated water gap is carried away, baking device for integrated water gap is placed on the supporting plate, make the pouring box integral formula mouth of a river and baking device for integrated water gap centering, reduce tundish position again, make the pouring box integral formula mouth of a river insert in baking device for integrated water gap, by tight with asbestos cloth wrapping for the joint portion of integral water gap outer wall and baking device for integrated water gap upper port;
B, tundish burner are lighted a fire, tundish is toasted, toast after 1.5 ~ 2 hours, in tundish, temperature reaches 700 ~ 800 DEG C, then compressed air valve is opened, compressed air is blown into from gas blow pipe joint, guides the flue gas in tundish to discharge from exhaust fitting, toasts tundish integral water gap;
C, be blown into compressed air baking 2 ~ 3 hours, in tundish, temperature reaches more than 1100 DEG C, integral water gap outer wall and baking device for integrated water gap upper port joint portion wrapping asbestos cloth temperature reach 600 ~ 700 DEG C, can continuous casting production be carried out.
2. the baking method of a kind of integral water gap of continuous casting tundish according to claim 1, is characterized in that: when toasting tundish integral water gap, and the gaseous-pressure of tundish burner is 0.5 ~ 0.7Mpa, and compressed air pressure is 0.2 ~ 0.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175137.7A CN102228985B (en) | 2011-06-27 | 2011-06-27 | Baking device and method for integral water gap of continuous casting tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110175137.7A CN102228985B (en) | 2011-06-27 | 2011-06-27 | Baking device and method for integral water gap of continuous casting tundish |
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| Publication Number | Publication Date |
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| CN102228985A CN102228985A (en) | 2011-11-02 |
| CN102228985B true CN102228985B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110175137.7A Active CN102228985B (en) | 2011-06-27 | 2011-06-27 | Baking device and method for integral water gap of continuous casting tundish |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107335796A (en) * | 2017-06-28 | 2017-11-10 | 秦皇岛首秦金属材料有限公司 | It is a kind of to utilize the method for toasting tundish waste heat baking invasive nozzle |
| CN112517898A (en) * | 2020-09-11 | 2021-03-19 | 南京钢铁股份有限公司 | Continuous casting tundish baking operation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565772A (en) * | 2003-06-23 | 2005-01-19 | 宝钢集团上海梅山有限公司 | Method and device for burning immersed nozzle of continuous casting bakie |
| CN2688421Y (en) * | 2004-04-10 | 2005-03-30 | 水城钢铁（集团）有限责任公司 | Intermediate shunk runner baker |
| KR20070049413A (en) * | 2005-11-08 | 2007-05-11 | 주식회사 포스코건설 | Preheating device of submerged entry nozzle for tundish |
| CN201168776Y (en) * | 2008-04-10 | 2008-12-24 | 于宏 | Online baking apparatus for continuous casting tundish nozzle |
| CN202155525U (en) * | 2011-06-27 | 2012-03-07 | 衡阳华菱钢管有限公司 | Baking device for integrated water gap of continuous casting tundish |
-
2011
- 2011-06-27 CN CN201110175137.7A patent/CN102228985B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565772A (en) * | 2003-06-23 | 2005-01-19 | 宝钢集团上海梅山有限公司 | Method and device for burning immersed nozzle of continuous casting bakie |
| CN2688421Y (en) * | 2004-04-10 | 2005-03-30 | 水城钢铁（集团）有限责任公司 | Intermediate shunk runner baker |
| KR20070049413A (en) * | 2005-11-08 | 2007-05-11 | 주식회사 포스코건설 | Preheating device of submerged entry nozzle for tundish |
| CN201168776Y (en) * | 2008-04-10 | 2008-12-24 | 于宏 | Online baking apparatus for continuous casting tundish nozzle |
| CN202155525U (en) * | 2011-06-27 | 2012-03-07 | 衡阳华菱钢管有限公司 | Baking device for integrated water gap of continuous casting tundish |
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| CN102228985A (en) | 2011-11-02 |
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